脱灰分

A review on different demineralization processes for coal-based activated carbon including pretreatment,metaphase and post treatment was presented.

分析了煤质活性炭灰分的来源、赋存形式及煤质活性炭的灰分对活性炭性能的影响；并对煤质活性炭的前期、中期、后期3种不同的脱灰工艺进行了综述，分析了3种工艺实际应用中的优缺点。

It was anticipated that more than 50% of ash and the hazardous elements As, Co, Cr, Cu, Hg, Mn and more than 30% of sulfur in most coal would be routinely removed by physical coal cleaning procedures, however, the removability of other hazardous elements Ba, Be, Cd, Cl, Mo, Ni, P, Pb, Sb, Se, Th, U, V and Zn displayed relatively lower or a wide range of variation.

结果表明：物理洗选不但能降低煤中的灰分与硫分，还能不同程度地脱除煤中有害微量元素；预测在物理洗选过程中，多数煤中灰分以及有害微量元素As、Co、Cu、Cr、Hg与Mn的脱除率大于50％，硫分的脱除率大于30％，其它有害微量元素Ba、Be、Cd、Cl、Mo、Ni、P、Pb、Sb、Se、Th、U、V与Zn的脱除率相对较低或表现出一个宽的变化范围。

The research work consists of two aspects:the relationship between fluorine in coal and ash,mineral composition;organic affinity and washability of fluorine in coal.

研究内容包括：煤中氟与灰分、矿物成分之间的关系；煤中氟的有机亲和性与可选性；研究结果表明：煤中氟质量分数与灰分质量分数之间呈正相关关系；中国煤中氟质量分数与灰分之间存在以下指数增长关系；煤中氟质量分数与煤中矿物质的成分有关；煤中氟属"中等无机型"元素，无机亲和力较强，有机亲和力较弱；煤中氟以无机氟为主，有机氟为辅的方式赋存；原煤洗选是脱除煤中氟的一种可行的技术措施。

The high sulfur coal from Jiexiu in Shanxi is used in this experiment and the influence of removing pyritic sulfur by adding different pyrites depressors on the process of agglomeration was explored in this study,The experiment result shows that adding pyrites depressors on the process of oil agglomeration can improve the sulfur-removing rate.

油团聚是以脱除煤中灰分为主的团聚技术，脱硫的效率很低，采用山西介休的高硫煤，探索在油团聚过程中加入不同的黄铁矿抑制剂(巯基乙酸、重铬酸钾、高锰酸钾)对脱除煤中黄铁矿硫的影响。结果表明加入黄铁矿抑制剂对脱硫效率有一定程度的影响

By the time of its fall, most of the prisoners were writers who had written against the corruptions of the government.

到它被攻陷的时候，里面多数的犯人是写了反对政府贪污文章的作家。

The most obvious variation to ovum morphological character was that the color was changed from light green to sepiaceous in embryonic development, and all the ovums were almost hatched after 96h.

在胚胎发育过程中卵的形态特征最明显的变化是颜色从淡绿到深褐色，卵在发育96h后卵基本全部孵化。